ADVERTISING CARTEL HEADED TO WEB BROWSERS

Tech giants are moving ad targeting infrastructure directly into web browsers through initiatives like Privacy Sandbox and similar frameworks. Rather than relying on third-party cookies, these systems embed advertising logic at the browser level, concentrating power among a few major players. Critics argue this creates a cartel-like structure where dominant companies control both the ad infrastructure and the data access needed to compete. Smaller ad networks and publishers face barriers to participation in these proprietary systems. The consolidation occurs under the guise of privacy protection—replacing cookies with first-party data collection managed by browsers themselves. However, the net effect grants incumbent platforms greater control over ad markets while appearing privacy-conscious. Regulators increasingly scrutinize these practices. The approach potentially violates antitrust principles by leveraging browser dominance to entrench advertising monopolies, fundamentally reshaping how digital advertising operates.